Dr. A. JACOBI presented a case of amaurotic family idiocy (Sachs) with symmetrical changes at the macula. The girl is at present one year old, the fourth child of healthy, not neurotic, not syphilitic, and not alcoholic parents, who emigrated from Russia, both belonging to the Semitic race. The other children are in good health. . . .

In discussing Dr. Jacobi's case, Dr. B. SACHS said that it was interesting to see the way observations of the ophthalmologists (among whom Dr. Knapp was one of the first) and those of the neurologists had finally been fused to constitute one common type of disease. The neurological aspect of amaurotic family idiocy was quite as distinct as the ophthalmological aspect is said to be. Idiocy, blindness, and a uniform progress to a fatal issue are the symptoms of this new clinical condition.